| 25901 | Seewald, Hughes | Amarillo, TX 79105 | Gas Operator | Jan 1997 |
| 25902 | Segars Operating | | Gas Operator | Apr 2014 |
| 25903 | Segler, Charles | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 25904 | Segrest-Ward Joint Venture | Longview, TX 75606 | Oil & Gas Operator | Jun 2001 |
| 25905 | Seguin Pump | Seguin, TX 78155 | Oil & Gas Operator | Sep 2017 |
| 25906 | Seguro Oil & Gas Inc | | Oil Operator | Jul 1992 |
| 25907 | Seguro Oil And Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2024 |
| 25908 | Seguro Well Service, Inc. | Gonzales, TX 78629 | Oil & Gas Operator | Sep 2026 |
| 25909 | Sei Operating, LLC | Mandeville, LA 70471 | Oil & Gas Operator | Sep 2026 |
| 25910 | Seibel Modern MFG. & Welding Corp. | Lancaster, NY 14086 | Gas Operator | Dec 2025 |
| 25911 | Seibert Oil & Gas | Hudson, OH 44236-4430 | Oil & Gas Operator | Dec 1999 |
| 25912 | Seibert Oil, LLC | Macksville, KS 67557 | Oil & Gas Operator | Jul 2025 |
| 25913 | Seidler Oil & Gas Operating, LLC | Alvarado, TX 76009 | Oil & Gas Operator | Sep 2026 |
| 25914 | Seifert, Timothy M. | Caledonia, NY 14423 | Gas Operator | Dec 2025 |
| 25915 | Seiguf Oil Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2026 |
| 25916 | Seiran E & P Company, LLC | Friendswood, TX 77546 | Oil & Gas Operator | Sep 2026 |
| 25917 | Seisgen Exploration, Inc | Houston, TX 77024 | Gas Operator | Aug 2005 |
| 25918 | Seisma Drilling Corporation | Wichita Falls, TX 76301 | Oil Operator | Aug 2003 |
| 25919 | Seismic Investment Group, Inc. | Houston, TX 77055 | Oil & Gas Operator | Jun 2008 |
| 25920 | Seismic Leasing Service | Denver, CO 80216 | Oil & Gas Operator | Aug 2000 |
| 25921 | Seismotech Energy, Incorporated | Plano, TX 75075 | Oil & Gas Operator | Aug 2003 |
| 25922 | Seistech Development, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2007 |
| 25923 | Seitz Farms Inc. | Phelps, NY 14532 | Gas Operator | Dec 2025 |
| 25924 | Seitz, Comegys & Seitz | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 1994 |
| 25925 | Seitz, J. R. & Adam | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2008 |
| 25926 | Seitz, J. R. & Adam, LTD. | Wichita Falls, TX 76307 | Oil Operator | Sep 2026 |
| 25927 | Sek Energy, LLC | Benedict, KS 66714 | Oil & Gas Operator | May 2026 |
| 25928 | Sek Oil Incorpor | | Oil Operator | Jun 1985 |
| 25929 | Selby Larry Monroe | Bartlesville, OK 74006 | Oil & Gas Operator | Apr 2020 |
| 25930 | Selco Oil And Gas Inc | Alamo, CA 94507 | Oil & Gas Operator | Jul 2026 |
| 25931 | Select Energy Investments Inc | Solon, OH 44139 | Oil & Gas Operator | Dec 2019 |
| 25932 | Select Exploration Group LLC | Eufaula, OK 74432 | Oil & Gas Operator | May 2024 |
| 25933 | Select Operating Company Inc | Dallas, TX 75225 | Oil & Gas Operator | Mar 2014 |
| 25934 | Select Water Solutions, LLC | Gainesville, TX 76240 | Oil Operator | Jun 2026 |
| 25935 | Self Brothers | Montague, TX 76251 | Oil & Gas Operator | Sep 2026 |
| 25936 | Self, Charles D. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2016 |
| 25937 | Self, Charles Lynn | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2026 |
| 25938 | Sell Drilling LLC | | Oil Operator | Feb 2011 |
| 25939 | Sell Well Servicing Company Osage Only | | Oil & Gas Operator | Nov 2019 |
| 25940 | Sell, David E | | Oil Operator | Jun 2026 |
| 25941 | Sellers Donald J | Depew, OK 74028-2442 | Oil Operator | Jan 2013 |
| 25942 | Sellers Jack B Estate Of | Cleveland, OK 74020 | Oil & Gas Operator | Jun 2026 |
| 25943 | Sellers Lease Service, Inc. | Flatonia, TX 78941 | Oil & Gas Operator | Sep 2026 |
| 25944 | Sellers Mark A | Drumright, OK 74030 | Oil & Gas Operator | Mar 2020 |
| 25945 | Sellers O N | Henryetta, OK 74437 | Oil & Gas Operator | May 1997 |
| 25946 | Sellers&Fulton Oil LLC | Artesia, NM 88210 | Oil & Gas Operator | Jun 2021 |
| 25947 | Sellers' Lease Service | Flatonia, TX 78941 | Oil & Gas Operator | Jul 1994 |
| 25948 | Sellmeyer Eugene | Collinsville, OK 74021 | Oil & Gas Operator | Mar 2015 |
| 25949 | Sellmeyer Frank | San Rafael, CA 94901-1339 | Oil Operator | Dec 2014 |
| 25950 | Selous Energy, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Jul 2015 |
| 25951 | Sem Operating Company LLC | Houston, TX 77042 | Oil & Gas Operator | Sep 2026 |
| 25952 | Seminole Company (The) | | Oil Operator | Dec 1994 |
| 25953 | Seminole Oil Productions LLC | Surprise, AZ 85387-2015 | Oil Operator | Apr 2020 |
| 25954 | Seminole Production Co. | Silsbee, TX 77656 | Oil & Gas Operator | Oct 2002 |
| 25955 | Seminole Tank Service | Seminole, OK 74818-1587 | Oil & Gas Operator | Jun 2026 |
| 25956 | Semo, Inc. | | Oil & Gas Operator | Feb 2002 |
| 25957 | Semper Fidelis Oil & Gas, LLC | Allen, TX 75013 | Oil & Gas Operator | Apr 2013 |
| 25958 | Senax Inc | Tulsa, OK 74105-2206 | Oil & Gas Operator | Jun 2026 |
| 25959 | Sendero Energy Inc. | Dallas, TX 75205 | Oil & Gas Operator | Sep 2026 |
| 25960 | Sendero Resources LLC | Denver, CO 80202 | Oil & Gas Operator | Jul 2026 |
| 25961 | Seneca Energy Corporation | Dover, OH 44622 | Oil & Gas Operator | Dec 2020 |
| 25962 | Seneca Exploration, LLC | Wichita Falls, TX 76308 | Oil Operator | Sep 2026 |
| 25963 | Seneca Oil Company | Tulsa, OK 74121-1518 | Oil & Gas Operator | Jan 2015 |
| 25964 | Seneca Resources Co LLC | Cranberry Township, PA 16066 | Oil & Gas Operator | Jun 2026 |
| 25965 | Seneca Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2017 |
| 25966 | Seneca Stone Corporation | Seneca Falls, NY 13148 | Gas Operator | Dec 2025 |
| 25967 | Seneca Western Minerals Corp. | | Oil & Gas Operator | Dec 2009 |
| 25968 | Seneca-Cashco | | Oil & Gas Operator | Sep 1986 |
| 25969 | Senico Production Company | Irving, TX 75016-5229 | Oil & Gas Operator | Mar 2002 |
| 25970 | Senior Drilling & Expl Co Inc. | | Oil & Gas Operator | Apr 1993 |
| 25971 | Senior G&A Operating Co Inc | | Oil & Gas Operator | Nov 1991 |
| 25972 | Senkel, Wesley, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2007 |
| 25973 | Senora Resources, Inc. | Dime Box, TX 77853 | Oil & Gas Operator | Sep 2026 |
| 25974 | Senske, Richard S. | Ashville, NY 14710 | Gas Operator | Dec 2025 |
| 25975 | Sensor Oil & Gas, Inc. | Duncan, OK 73534 | Oil & Gas Operator | May 2013 |
| 25976 | Sentinel Peak Resources California LLC | | Oil & Gas Operator | Jul 2026 |
| 25977 | Sentinel Petroleum Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2020 |
| 25978 | Sentry Exploration, Inc. | Houston, TX 77006 | Oil & Gas Operator | Sep 2026 |
| 25979 | Sep Cisco Dome II, LLC | Orem, UT 84097 | Oil & Gas Operator | Jun 2026 |
| 25980 | Sep Cisco Dome LLC | Orem, UT 84097 | Oil & Gas Operator | Mar 2015 |
| 25981 | Sep Nosr LLC | Orem, UT 84097 | Oil & Gas Operator | Jul 2026 |
| 25982 | Sep, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1994 |
| 25983 | September Corp | Titusville, PA 16354-6833 | Oil & Gas Operator | Dec 2025 |
| 25984 | Sepulvado Oilfield Service Inc | | Oil & Gas Operator | Jul 2010 |
| 25985 | Sequel Energy, LLC | | Oil & Gas Operator | May 2014 |
| 25986 | Sequoia Energy Resources | Dallas, TX 75207 | Oil & Gas Operator | Sep 2026 |
| 25987 | Sequoia Exploration Inc. | | Oil & Gas Operator | May 2026 |
| 25988 | Sequoia Fossil Fuels, Inc. | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 25989 | Sequoia Management, LLC | Houston, TX 77060 | Oil & Gas Operator | Nov 2009 |
| 25990 | Sequoia Natural Gas, Inc. | Albany, TX 76430 | Oil & Gas Operator | Sep 2026 |
| 25991 | Sequoyah Energy Holdings LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jun 2026 |
| 25992 | Ser E&P, Inc. | McKinney, TX 75069 | Oil & Gas Operator | Sep 2026 |
| 25993 | Serco Operating LLC | Katy, TX 77450 | Oil Operator | Sep 2026 |
| 25994 | Serendipity Exploration, Inc. | Weatherford, TX 76087 | Gas Operator | May 1997 |
| 25995 | Serendipity Operating LLC | Sparks, NV 89436-9328 | Oil & Gas Operator | Jun 2026 |
| 25996 | Serendipity Production Company LC | Guthrie, OK 73044 | Oil & Gas Operator | Apr 2020 |
| 25997 | Sergeant Gas Co Inc | Wilcox, PA 15870-1810 | Oil & Gas Operator | Dec 2024 |
| 25998 | Serio Energy Corp. | | Oil & Gas Operator | Jul 2000 |
| 25999 | Serio Exploration Company | | Oil Operator | Jan 1992 |
| 26000 | Serio Oil Corp. | | Oil & Gas Operator | Sep 1991 |